Lock



O. C. RIXSON LOCK Filed Feb. 21. 1922 Patented July 24-, 1923.

titan OSCAR C. RIXSON, OF NEW ROCHELLE, NEW YORK, ASSIGNOR TO THE OSCAR C. RIXSON 00., A CORPORATION OF ILLINOIS.

'LOCK.

Application filed February 21, 1922.

i To all whom it may concern:

- New Rochelle, in the county of Kings and State of New York, have invented certain new and useful Improvements in Locks, of which the following is a full, clear, and exact description.

My invention has particular reference to means for securing in place the ornamental members which are used in connection with looks to cover the transverse holes in doors provided for the reception of the knob spindles or the like. It is common practice, for example, with mortise locks to use for this purpose a relatively small circular plate known as a rose, which usually has a hollow central outstanding boss serving as a hub or.

bearing for the knob spindle, and which is screwed to the material ofthe door around the knob spindle hole. Since doors and lock cases are not of uniform thickness it frequently happens that the material left on the two sides of the mortise is not sufficiently thick to accommodate a screw of proper length. So generally with metal doors there is difficulty in securing escutcheons or the like to the face of the door where such plates are not of a size to bring the screws above or below the lock case. Furthermore the screws tend to work loose, particularly if the building is subjected to much vibration, and this annoyance is especially pronounced where the screws are short due to inadequate thickness of material.

Another source of trouble with such locks is the difliculty of accurately positioning the plate when it is attached to the door so that the bearing for the knob spindle exactly aligns with the hub for the spindle in the lock case. Failure to so align the parts results in a binding of the knob spindle and a resultant lack of the necessary freedom of movements of the knob. Under such conditions the bolt tends to remain retracted when the knob is released with the bolt in that position. I

An object of my invention is to obviate the above recited difficulties and to provide means for securing the plate in position which will be simple of application and whichwill always assure correct alignment and security of attachment. Another object is to provide a construction which will readily accommodate itself to various thick- Serial No. 538,181.

nesses of doors. Other objects are simplicity in construction and inexpensiveness in manufacture. Still other ob ects and advantages of my invention will appear from the following description. Y

In accordance with my invention I attach the rose or other plate to the lock case itself, through an intermediate member on the side of the case which is disposed in the transverse hole in the door, the hole being made large enough for this purpose, and which i has two screw receiving parts spaced from the wall of the case and to which the plateis screwed. The spacing permits the screws to pass more or less through the screw receiving parts and thus enable the plate to occupy various distances from the case according to the thickness of the door or of the material on the sides of the mortise. The intermediate attaching member may be screwed to the lock case, and all of the screw holes will be precisely located in the forming of the parts so that the parts will always accurately assemble.

Preferably the intermediate attaching member will be made of suitable resilient material, such as sheet metal, and the screw holes for receiving the plate attaching screws will be in lateral outstanding wing portions. With such a construction the member acts like a spring washer and tends to hold the screws against turning.

My invention also comprehends various other features of construction as will hereinafter more fully appear. I shall now describe the illustrated embodiment of my invention and shall thereafter point out my invention in claims.

Fig. 1 is an elevation of a lock case in the mortise of a door, the part of the door shown being partially sectioned to disclose the major portion ofthe lock case, the remainder being indicated by dotted lines,

Fig. 2 is a vertical sectional elevation of the same on line- 2-2 of Figure 1, the rose and attaching member on the right side being also sectioned.

Fig. 3 is a horizontal section of the same on line 3-3 of Figure 1, the other rose and attaching member being sectioned.

Fig. 4 is a detail of the blank from which the attaching member is formed; and

Fig. 5 is a detail in perspective of the attaching member.

Since the mode of attaching the two roses than usual.

on the opposite Sides of the door is the same, the description will apply to the construction on both sides. The lock case 1 is seated in the mortise 2 of the door 3, and the door is provided with a transverse orifice 4 for the reception of the knob spindle 5, the orifice being somewhat larger The rose 6 covers the orifice 1 and is provided with the usual central outstanding hub portion, which serves as a bearing for the spindle of the knob 7, and the knob spindle is so constructed that a pull on one knob is transmitted to the other knob through the spindle. The lock case 1 is secured in place and held firmly in the mortise by means of a conventional face plate, such as shown, which is set in to the edge of the door and secured thereto at points above and below the lock case in the usual manner.

The intermediate attaching member 8 which serves to secure the rose in place is indicated in detail in Fig. 5 and is formed from a sheet metal blank ot the shape shown in Fig. 1, provided with a central opening through which the knob spindle passes. On either side of this central opening there is provided a screw hole, 9 and 10, for attachment to the side of the lock case. Along the axis at right angles to that joining the holes 9 and 10, the blank has two lateral wings or extensionsll and 12 which areprovided with screw threaded openings 13 and 14 respectively. The metal is pref erablythickened around these openings 13 and 1 1 to afford a longer bearing for the screws, and this may be done by employing a special type of punch in forming the holes 13 and 14. In order to bringthe screw holes 13 and l t in a different plane from that of the holes 9 and 10, the metal is bent at right angles to the plane of the blank along the line joining the wing portions to the central portion, and then the extremities are again turned at right angles to a plane parallel to that of the central portion.

The attaching member 8 is secured against the face of the lock case by screws 15 and 16 which pass through the holes 9 and 10 and engage in threaded holes provided for them in the lock case. This leaves the two opposing wing portions 11 and 12 raised from the face of the lock case. The rose 6 v is provided with two screw holes which exactly register with the screw holes 13 and 14: in the wings of the attaching member, and screws 17 and 18 serve to fasten the rose to the two wings of the attaching member in the manner shown.

It is evident that the tension of the screws upon the resilient wing portions tends to lock both these screws and also the screws 15 and 16 against turning. It is also evident that the thickness of the material on the sides of the mortise of the door may vary without altecting the ease and security of attachment of tie rose to the at taching member. Since the holes in the lock case, the intermediate attaching memher and the rose are always formed at the time these parts are made, it-follows that the holes are sure to be properly located to permitthe parts to assemble with the knob spindle exactly aligned with the hub in the lock itself.

It is obvious that various modifications may be made in the construction shown in the drawings and above particularly described within the principle and scope of my invention.

I claim:

1. A lock construction for doors having a mortise and a transverse orifice therein for receiving a knob spindle, which constructioncomprises a lock case adapted to be received within the mortise and having in its side wall a hole for a knob spindle, an attaching member adapted to be secured to the side wall of the lock case within the transverse orifice in the door and having a screw hole, a plate adapted to cover said orifice in the door and having a hub for a knob spindle, said plate being provided with a screw hole arranged to register with that in the attaching memberiwhen the said hub is aligned with the said hole in the lock case. a y r 2. A lock construction for doors having a mortise and a transverse orifice therein for receiving a knob spindle, which construction comprises a lock case adapted to be received within the mortise and having in its side wall a hole for a knob spindle, an attaching member adapted to be secured to the side wall of the lock case within the transverse orifice of the door and having a part provided with a screw hole outstanding substantial distance from the lock case, a plate adapted to cover said orifice and having a hub for a knob spindle, said plate being provided with screw hole arranged to register with that "in the outstanding part on the attaching member when the said hub is aligned with the said hole in thelock case.

3. A lock construction for doors having a mortise and transverse orifice communicating with the mortise -from both sides of the door for receiving a knob spindle, whichcon struction comprises a lock case adapted to be received within the mortise and having a hole therethrough for a knob spindle, an attaching member adapted to be secured to the opposite side walls of the lock case within the trans *erse orifice in the door, each attaching member having a screw hole therein, a

knob spindle passing through the hole in the lock case, a door knob attached'to each end of said spindle, and plates adapted to cover the orifices having hubs for supporting the to be received within the mortise and having a hole therethrough for a knob spindle, attaching members adapted to be secured to the opposite side walls of the lock case within the transverse orifice in the door, each attaching member having a part provided with a screw hole outstanding a substantial distance from the lock case, a knob spindle passing through the hole in the lock case, a door knob fastened to each end of said spin dle, and plates adapted to cover the orifices having hubs for supporting the respective door knobs and each plate having a screw hole, arranged to register with that in the outstanding part of the respective attaching member when the plates are in position with the said hubs aligned with the said hole in the loc I case.

5. A lock construction for doors having a mortise and transverse orifice communicating with the mortise "from both sides of the doorior receiving a knob spindle, which construction comprises a lock case adapted .to be received within the mortise and having a hole for a knob spindle, attaching members adapted to be secured to the side walls of the lock case within the transverse orifice in the door, a knob spindle passing through the hole in the lock case, a door knob fastened to each end ofsaid spindle, the spindle being continuous from end to end, whereby a pull on one knob is transmitted to the other, plates to cover the orifices having hubs for supporting the door knobs, and means for securing said plates to the attaching members with the said hubs aligned with the said hole in the lock case.

6. A lock construction for doors having a. mortise and transverse orifice communicating with he mortise from both sides of the door for receiving a knob spindle, said construction comprising a lock case adapted to be received within the mortise and having a hole for a knob spindle, attaching members adapted to be secured to the side walls of the lock case within the transverse orifice in the door and having screw holes, a knob spindle passing through the hole in the lock case, a door knob fastened to each end of said spindle, the spindle being continuous from end to end, whereby a pull on one knob is transmitted to the other, and plates to cover the orifices having hubs for supporting the door knobs, said plates having screw holes arranged to register with those in the respective attaching members for securing said plates to the attaching members with the said hubs aligned with the said hole in the lock case.

7. A lock construction for doors having a mortise and a transverse orifice therein for receiving a knob spindle, which construction comprises a lock case adapted to be received within the mortise and having in its side wall a hole for a knob spindle, an annular attaching member adapted to pass through the transverse orifice and having two oppositel'y disposed raised parts, means for securing the attaching member to the side of the lock case in concentric relation to the said hole therein, a rose proportioned to cover the orifice and having a hub for a knob spindle, and means for securing the rose to the raised parts of the attaching member with the said hub aligned with the said hole in the side or the lock case.

8. A lock construction for doors having a mortise and a transverse orifice therein for receiving a knob spindle, which construction comprises a lock case adapted to be received within the mortise and having in its side wall a hole for a knob spindle, an annular sheet metal attaching member having two lateral elevated wing portions and arranged to be secured against the lock case within the said orifice in concentric relation to the said hole in the side oi the case and with the wing portions spaced from the lock case, a rose proportioned to cover the orifice and having a hub for a knob spindle, and means for socuring the rose to the wing portions of the attaching member with the said hub aligned with the said hole in the side of the lock case,

9. A lock construction for doors having a mortise and a transverse orifice therein for receiving a knob spindle, which construction comprises a lock case adapted to be received within the mortise and having in its side wall a hole for a knob spindle and two screw holes on opposite sides of said spindle hole, a sheet metal attaching member having a central opening and also having in one axis on opposite sides of said opening two screw holes adapted to register with those in the lock case and having in its axis normal to the first axis two lateral elevated wing portions each provided with a screw hole, and a rose proportioned to cover the said orifice and having two screw holes therein adapted to register with those in the said wings when the rose is in position.

In witness whereof, I hereunto subscribe my signature.

OSCAR C. REXSON. 

